{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["entity destination", "message topic", "instrument agency", "cause effect"], "input": "isolated fractures of the shaft of the ulna , without other fractures , often result when the forearm is raised to fend off a blow ."}
{"entity destination": [], "message topic": [], "instrument agency": [], "cause effect": []}